tree: git://anongit.freedesktop.org/drm/drm-misc drm-misc-next head: de8de2c8acb931ce6197a04376a7078ccf50e821 commit: 47f419e07111acecab3b529d4ae31a28985f5b61 [1/3] drm/dp: move intel_dp_vsc_sdp_pack() to generic helper config: i386-buildonly-randconfig-003-20240225 (https://download.01.org/0day-ci/archive/20240226/202402260120.eBo7nTYE-lkp@xxxxxxxxx/config) compiler: clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240226/202402260120.eBo7nTYE-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202402260120.eBo7nTYE-lkp@xxxxxxxxx/ Note: the drm-misc/drm-misc-next HEAD de8de2c8acb931ce6197a04376a7078ccf50e821 builds fine. It only hurts bisectability. All errors (new ones prefixed by >>): >> drivers/gpu/drm/i915/display/intel_dp.c:4233:8: error: call to undeclared function 'intel_dp_vsc_sdp_pack'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 4233 | len = intel_dp_vsc_sdp_pack(vsc, &sdp, sizeof(sdp)); | ^ drivers/gpu/drm/i915/display/intel_dp.c:4233:8: note: did you mean 'drm_dp_vsc_sdp_pack'? include/drm/display/drm_dp_helper.h:815:9: note: 'drm_dp_vsc_sdp_pack' declared here 815 | ssize_t drm_dp_vsc_sdp_pack(const struct drm_dp_vsc_sdp *vsc, | ^ 1 error generated. vim +/intel_dp_vsc_sdp_pack +4233 drivers/gpu/drm/i915/display/intel_dp.c 03c761b00c87d6 Gwan-gyeong Mun 2020-02-11 4223 cafac5a9836199 Gwan-gyeong Mun 2020-05-14 4224 void intel_write_dp_vsc_sdp(struct intel_encoder *encoder, cafac5a9836199 Gwan-gyeong Mun 2020-05-14 4225 const struct intel_crtc_state *crtc_state, 9ce5884e513903 José Roberto de Souza 2021-09-22 4226 const struct drm_dp_vsc_sdp *vsc) cafac5a9836199 Gwan-gyeong Mun 2020-05-14 4227 { 7801f3b792b0fd Lucas De Marchi 2020-06-30 4228 struct intel_digital_port *dig_port = enc_to_dig_port(encoder); cafac5a9836199 Gwan-gyeong Mun 2020-05-14 4229 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); cafac5a9836199 Gwan-gyeong Mun 2020-05-14 4230 struct dp_sdp sdp = {}; cafac5a9836199 Gwan-gyeong Mun 2020-05-14 4231 ssize_t len; cafac5a9836199 Gwan-gyeong Mun 2020-05-14 4232 cafac5a9836199 Gwan-gyeong Mun 2020-05-14 @4233 len = intel_dp_vsc_sdp_pack(vsc, &sdp, sizeof(sdp)); cafac5a9836199 Gwan-gyeong Mun 2020-05-14 4234 cafac5a9836199 Gwan-gyeong Mun 2020-05-14 4235 if (drm_WARN_ON(&dev_priv->drm, len < 0)) cafac5a9836199 Gwan-gyeong Mun 2020-05-14 4236 return; cafac5a9836199 Gwan-gyeong Mun 2020-05-14 4237 7801f3b792b0fd Lucas De Marchi 2020-06-30 4238 dig_port->write_infoframe(encoder, crtc_state, DP_SDP_VSC, cafac5a9836199 Gwan-gyeong Mun 2020-05-14 4239 &sdp, len); cafac5a9836199 Gwan-gyeong Mun 2020-05-14 4240 } cafac5a9836199 Gwan-gyeong Mun 2020-05-14 4241 :::::: The code at line 4233 was first introduced by commit :::::: cafac5a983619944afa639c53f0d5d885616a3d2 drm/i915/dp: Add compute routine for DP PSR VSC SDP :::::: TO: Gwan-gyeong Mun <gwan-gyeong.mun@xxxxxxxxx> :::::: CC: Jani Nikula <jani.nikula@xxxxxxxxx> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki